Introduction: Preliminary data suggest that immobilization in external rotation may be effective in lowering the incidence of recurrence after first traumatic shoulder dislocation, with a zero reoccurrence rate reported at 15 months follow-up. The purpose of the present study was to ascertain whether this method could lower the incidence of recurrent dislocation in a young, very physically active population.

Methods: In an IRB approved prospective study, young males who sustained first traumatic shoulder dislocation were randomized to be treated for four weeks either using a traditional internal rotation brace or a new device which immobilizes the shoulder at 15 to 20 degrees of external rotation. Subjects were then treated according to a standard physical therapy protocol. Follow-up was done at five time points in the first year post dislocation. Subjects with clinically stable shoulders resumed full activity after three months. Differences in outcome were assessed by the chi square test.

Results: Thirty nine subjects participated in the study. Thirty of them were soldiers. Twenty four subjects were treated with external rotation braces. At follow-up of between 4 to 28 months, a new dislocation was documented in 8 of the 24 subjects immobilized in external rotation (33%) and in 5 of the 15 subjects immobilized in internal rotation (33 %). No statistical difference (p=1.0) was found between the instability rates of the two treatment groups.

Discussion: The present study indicates that even in a short-term follow-up the technique of immobilizing a first dislocation in external rotation was not effective in lowering the incidence of recurrent shoulder dislocations in a young, physically active population.

The Purpose: To compare clinical results of proximal humerus fractures following internal fixation with proximal humeral locked plate versus conservative treatment.

Materials and Methods: 25 patients sustained 3-part fractures of the proximal humerus. 8 were internally fixed and 17 were treated conservatively in two different centers.

Mean age: 65.4±12.7 Gender: 22 females, 3 males. Age and gender were similar in both groups. Follow up was longer in the conservative group (23.8 m ±7.5) compared to the operated one (11.1 m ±8.3).

All the patients were evaluated clinically using Constant’s score.

Statistical analysis was performed using Fisher’s exact test (examination rates differences), Mann-Whitney test (examination means difference) and Spearman’s test (evaluation of the correlation coefficient between two continuous variables).

Results: Constant’s score in the operated group was 57.1±19.3 and 58±21.5 in the conservative group. Union was noticed in all the operated patients, and there was one case of nonunion in the conservative group. There were no cases of AVN in any group.

Statistical Analysis: No significant difference between the two groups was found for total Constant’s score. ROM was similar in both groups except for the rotations, which tended to be better in the operated group: IR 7.6±2.6 versus 5.4±3.3 (p=0.103) respectively, ER 7.7±3.1 versus 6±2.6 (p=0.169) respectively.

Conclusions: Clinical results are similar for operative and conservative treatments in 3 part fractures of the proximal humerus. There are better results for rotations in the operated group. Strength in abduction is superior in the conservative group.

The difference could be influenced by the shorter follow–up period in the operated group.

Purpose: The purpose of this study is to analyze the anatomo-radiological results, the clinical results, and complications of minimally displaced fractures of the proximal humerus, treated by immediate, ambulatory self-passive mobilization, followed by a strengthening and propioceptive training program.

Materials and Methods: 12 patients, 7 females and 5 males, mean age 56.91 (SD: 15.76) were reviewed retrospectively at a mean of 28.33 months follow-up. All the patients were mobilized the day after the first visit, i.e. the day after the fracture in 7 patients (58.3%), up to 7 days after the fracture in 4 patients and 3 weeks after the fracture in one late referral. Over an average period of 5.8 months, an average 45.41 (SD: 20.83) sessions of rehabilitation, with a therapist, for each patient, were recorded. The patients were recommended to perform four sessions of self rehabilitation a day. Clinical evaluation included a questionnaire covering subjective evaluation, Activities of Daily Living (ADL) by means of the ASA index and the Constant’s score, and type and duration of rehabilitation. The radiological evaluation included review of the X-rays, from the initial traumatic event to the last follow up X-ray. An AP view with three rotations, outlet view and axillary view were performed for each patient. The fracture type, displacement, interval for union, glenohumeral osteoarthritis (according to the Samilson classification), type of acromion and osteoporosis, were recorded. Special attention was paid in detecting joint stiffness, algodystrophy, neurological impairment, malunion, further displacement, signs of avascular necrosis and post-traumatic osteoarthritis.

Results: The mean non adjusted Constant’s score at last follow up was 88.33 over 100 (SD: 11.45) an average of 96.01% compared to the contralateral side. 83% of patients were pain free, and 17% reported mild pain. Active motion was very satisfactory averaging 96.23% in forward flexion, 89.86% in external rotation with the hand at the side, and 90.22% in external rotation at 90° abduction, and a difference of 1.46 vertebral levels in active internal rotation, as compared to the contralateral shoulder. Passive motion was also analyzed in the same way. Power of the affected shoulder in forward elevation was on average 90.19% of the contralateral side. Impingement was tested by the Neer, Hawkins and Yocum signs: 4 patients (33.3%) reported at least one positive sign of impingement. The Jobe and Palm up tests were negative in 100% of patients. 11 patients were very satisfied and 1 patient satisfied. Joint stiffness developed in one case (8.3%), with 100° of forward elevation, 50° external rotation with the hand at the side, 50° external rotation at 90° abduction. No algodystrophy, no neurological impairment, no further displacement, no signs of avascular necrosis, no post-traumatic progression of osteoarthritis, were observed in any case. Union was achieved in all the 12 patients, in 2 cases with some degree of angulation.

Conclusions: Very good functional and radiological results were obtained with immediate passive mobilization of minimally displaced fractures of the proximal humerus. It is a safe method as all the fractures united and the rate of complication was very low especially without joint stiffness or RSD and with very good patient satisfaction.